exoclock

HAT-P-27b

Discovered by: Béky et al. 2011

The Star
Simbad
GAIA
2MASS
HAT-P-27
DR2 1159336403336463872
J14510418+0556505
RA 14:51:04.1870 DEC +05:56:50.548
Parallax
4.992 mas
P.M. RA
-28.621 mas/y
P.M. DEC
-2.757 mas/y
MagV
12.19
MagR
11.98
MagI
11.23
MagJ
10.626
MagH
10.249
MagK
10.109
MagG
11.956
MagGBP
12.419
MagGRP
11.352
*Calculated from GAIA magnitudes.

Ephemeris - Verified True
Kokori et al. 2021
Mid-time
2456638.93852 ± 0.00012 BJDTDB
Period
3.0395778 ± 2.5e-07 days

Transit Parameters
Béky et al. 2011
Rp/Rs
0.119 ± 0.003
a/Rs
9.7 +0.4 -0.5
i
84.7 +0.4 -0.7 deg
e
0.08 +0.05 -0.05
ω
63.0 +64.0 -64.0 deg
DepthR*
14.08 mmag
Duration*
1.68 hours
*Calculated from the other parameters, using PyLightcurve.
**Adjusted to produce a duration that matches the observations.

Limb Darkening Parameters
Béky et al. 2011
Teff
5300.0 +90.0 -90.0 K
Log(g)
4.51 +0.04 -0.04 cm/s2
Fe/H
0.29 +0.1 -0.1 dex
ExoClock Status
Observing Priority
ExoClock Observations (Recent)
Space Observations
Literature Mid-times
ETD Observations
O-C minutes
LOW
29 (8)

9

0.16±0.23

HAT-P-27b


ExoClock Observations

Observation
Date
Observer
Observatory
Telescope
Camera / Filter / Exp [s]
O-C
minutes
2022-06-30 Jean-Pascal Vignes
Deep Sky Chile
Planewave CDK400
QHYCCD 600M / Lum / 60.0
-2.6 ± 0.9
2022-06-20 Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 90.0
-1.0 ± 2.7
2022-06-14 Stefano Lora
MarSEC
Ritchey Chrétien
Moravian G2 Mark II / Clear / 120.0
3.4 ± 1.3
2022-04-15 Adam Popowicz
Otivar dome2
Newton 12" ASA
ASI ZWO 1600MM / R / 65.0
5.5 ± 2.4
2022-04-12 Paolo Arcangelo Matassa
P:M.P.H.R. Deep Sky (K81)
Ritchey Chretien 40cm-F5.3
CCD ICX453AQ / Lum / 120.0
1.4 ± 1.9
2022-04-05 Marc SERRAU
A77 Dauban
Celestron 11
ST8-XME / Clear / 120.0
0.9 ± 1.6
2022-02-16 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / Lum / 120.0
-1.4 ± 1.0
2022-02-07 Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 150.0
0.6 ± 2.0
2021-06-09 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
0.2 ± 1.2
2021-06-02 Mario Billiani
starbase
Unistellar eVscope
Sony IMX224 / Clear / 119.09991
0.9 ± 5.8
2021-05-24 Carmelo Falco
GAL Hassin Robotic Telescope 2 (GRT2) - Multiband
Giacometti-Fogale RC16 - 2
Andor Apogee Aspen CG16M / g' / 90.0
0.4 ± 2.4
2021-05-24 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / Lum / 60.0
-1.1 ± 2.9
2021-04-18 Billy Edwards
Haleakala Observatory
LCO Meade
SBIG STX6303 / r' / 59.937
-0.2 ± 1.3
2021-04-12 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / R / 120.0
0.9 ± 1.0
2021-04-09 Yves Jongen
Deep Sky Chile
Plane Wave CDK 17"
Moravian 4G / V / 120.0
3.8 ± 1.2
2021-03-28 Marc Deldem
Les Barres Observatory
Celestron C11
SBIG ST10-XME / Clear / 120.0
-1.1 ± 1.0
2021-03-28 Carmelo Falco
GALHassin Robotic Telescope 2 (GRT2)
Giacometti-Fogale RC16
Andor Apogee Aspen CG16M / g' / 90.0
-2.3 ± 1.9
2021-03-25 Yves Jongen
Rasteau Observatory
Plane Wave CDK 17"
SBIG STXL 11002 / Lum / 120.0
2.9 ± 1.0
2021-03-25 Alberto Tomatis
Alto-Observatory
RC
STL 6303 / Lum / 60.0
1.2 ± 2.9
2021-03-25 Ivo Peretto
MarSEC Marana Space Explorer Center
R-C
Moravia G2-1600 MkII / Clear / 60.0
0.2 ± 2.2
2021-03-25 Mauro Caló
Cavallino
RC
SBIG ST10 / Lum / 60.0
-0.1 ± 4.3
2021-03-25 Adrian Jones
Private Observatory (I64)
Meade ACF 30cm
QSI 583 / R / 100.0
-0.7 ± 2.3
2021-03-15 Rauno Neito
Tartu Observatory
Planewave CDK 12.5
Apogee Alta U42 / R / 60.0
0.6 ± 1.4
2020-05-22 Matthias Mallonn
STELLA
Cassegrain
optical CCD photometer / r' / 50.0
-1.2 ± 0.6 - Data available
2020-05-19 Matthias Mallonn
STELLA
Cassegrain
optical CCD photometer / r' / 50.0
0.3 ± 0.7 - Data available
2020-05-15 John Savage
Z42 Rushay Farm Observatory
Celestron 14Edge
ZWO ASI6200MM / Clear / 120.0
1.3 ± 1.2 - Data available
2020-05-15 Matthias Mallonn
STELLA
Cassegrain
optical CCD photometer / r' / 50.0
0.2 ± 0.6 - Data available
2020-05-15 Francois Regembal
HRTobs
Astrosib RC360
SBIG STX 16803 / Lum / 60.0
-2.0 ± 2.9 - Data available
2017-05-29 Alessandro Marchini
Astronomical Observatory, University of Siena
Mak-Cas 0.3m f/5.6
Sbig STL-6303 / R / 300.0
2.3 ± 2.2


Literature Mid-times

Observation
Date
Mid-time Time format Reference O-C
minutes
2013-06-03 2456447.44571 ± 0.0003 BJD_TDB Seeliger et al. 2015 0.8 ± 0.4
2012-04-25 2456043.18095 ± 0.00135 BJD_TDB Seeliger et al. 2015 -0.5 ± 1.9
2012-04-01 2456018.86457 ± 0.00232 BJD_TDB Seeliger et al. 2015 -0.1 ± 3.3
2011-05-21 2455702.74876 ± 0.00039 BJD_TDB Sada et al. 2012 0.3 ± 0.6
2011-05-06 2455687.55122 ± 0.00051 BJD_TDB Seeliger et al. 2015 0.8 ± 0.7
2011-04-08 2455660.19481 ± 0.00116 BJD_TDB Seeliger et al. 2015 0.5 ± 1.7
2011-04-05 2455657.15333 ± 0.00107 BJD_TDB Seeliger et al. 2015 -2.2 ± 1.5
2010-06-14 2455362.31489 ± 0.00023 HJD_UTC Anderson et al. 2011 -0.3 ± 0.3
2009-12-20 2455186.01879 ± 0.00054 BJD_UTC Béky et al. 2011 -1.1 ± 0.8
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